NEET Biology Excretory Products And Their Elimination Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Answer: (b)

Juxtaglomerular cells secrete an enzyme renin into blood. Renin changes plasma protein angiotensiongen to a peptide called angiostensin 11. It increases the blood volume : (i) by inducing proximal convoluted tubules to reabsorb more NaCl and water (ii) stimulates the adrenal glands to release a hormone called aldosterone which induces the distal convoluted tubule to absorb more $Na^{+}$ and water.